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Septic system requirements in Johnson County, Wyoming

The septic rules landplan.io applies in Johnson County, what a septic tank costs there, and the parcel data we hold.

Updated

Design a septic system for an address in Johnson County

Wyoming's state rules apply in Johnson County: landplan.io has no county rules of its own here. State rules: Reviewed See Wyoming's rules

6system types permitted
1,000 gallonssmallest septic tank
Coveredparcel data

Septic systems allowed in Johnson County

The system types landplan.io permits in Johnson County:

Septic tank size in Johnson County

The daily design flow of a home: 150 gal/day per bedroom, at least 240 gal/day. The septic tank is sized from that flow:

Septic Tank: minimum size by daily design flow
Daily design flowMinimum tank
up to 240 gal/day1,000 gallons
240 to 360 gal/day1,500 gallons
360 to 600 gal/day2,000 gallons
600 to 720 gal/day2,500 gallons
720 to 840 gal/day2,750 gallons
840 to 920 gal/day3,000 gallons
920 to 1,040 gal/day3,250 gallons

Septic setbacks in Johnson County

Minimum distances
FromToDistance
PolygonExisting Septic Component to be Abandoned5 ft

These are the values the landplan.io design engine applies in Johnson County. Confirm a design with the Wyoming health department or your county's before you build.

Parcel data in Johnson County

landplan.io has parcel boundaries for Johnson County (100% of its area): type an address and the design starts from the parcel.

Septic companies, designers and jobs in Wyoming

Where the rules come from

The regulations and documents landplan.io's Johnson County, Wyoming rules are read from:

Near Johnson County

Questions

What septic systems are allowed in Johnson County?

landplan.io designs by Wyoming's state rules there and permits: Elevated Sand Mound System, Subsurface Pressure Trench System, Subsurface Trench System, Infiltrator Advanced Treatment Leachfield, Infiltrator Advanced Enviro-Septic® (AES) and Discharging System.

What size septic tank do I need in Johnson County?

landplan.io sizes the septic tank in Johnson County from the daily design flow: up to 240 gal/day: 1,000 gallons; 240 to 360 gal/day: 1,500 gallons; 360 to 600 gal/day: 2,000 gallons; larger flows need larger tanks. A home's design flow is 150 gal/day per bedroom, at least 240 gal/day.

Does landplan.io have parcel data for Johnson County, Wyoming?

Yes: parcel boundaries cover Johnson County (100% of its area).